JPH111385A - Composing unused resource - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use the calorie of a conditioner for primary fermentation and to reduce heat energy used, by mixing a fermentable organic substance such as an agricultural, fishery or stock raising waste with the excrement of domestic animal and a porous solid organic substance such as wood chips, subjecting the mixture to primary fermentation, screening the fermented substance by a sieve and recycling the solid organic substance not passing through the sieve, etc. as the conditioner to the medium of a primary fermentation tank to mix the conditioner with the medium. SOLUTION: A fermentable organic substance such as an agricultural, fishery or stock raising waste is mixed with the excrement of domestic animal and a porous solid organic substance such as wood chips or bark or its artificial substitute and subjected to primary fermentation. The fermented substance is screened by a sieve apparatus 5 and the solid organic substance not passing through the sieve, etc. is stored as a conditioner 6 in a conditioner tank 7, the conditioner 6 is repeatedly recycled and is used as a new agricultural, fishery or stock raising waste. Since the conditioner 6 is low in a water content, it contributes to the absorption of water and uniform mixing in the agricultural, fishery or stock raising waste.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to agriculture, horticulture, and the like, in which fertilizer is efficiently fermented with a small amount of energy using a large amount of inoculum in a short time without spoiling wastes from agricultural, marine and livestock processing plants and households. The present invention relates to a composting method for reducing and using soil as a highly effective soil fertilizer.

[0002]

2. Description of the Related Art Conventionally, fermentation treatment of agricultural, aquatic and livestock wastes has been carried out under conditions suitable for fermentation by dehydration treatment or addition of a large amount of auxiliary materials such as sawdust and peaches due to their high water content. I had to adjust the water.

[0003] In the cold season, since the waste itself is at a low temperature, fermentation does not start and the waste must be heated by a heating device. Therefore, fermentation requires a large amount of energy and equipment costs, and the fermentation conditions of the inoculum are not stable, resulting in poor efficiency. As a result, wastes are discarded at a wasteful cost due to chemical treatment or incineration. Was.

Further, according to the conventional method, composting is performed only by one fermentation, so that high-grade fertilizer components such as phosphoric acid and potassium, as well as trace soil components, were not concentrated. Can be effectively concentrated such as solid organic matter.

[0005]

The fermentation treatment of agricultural, livestock, and livestock waste requires a dehydrator for adjusting the water content or a large amount of auxiliary materials such as sawdust and peach.

[0006] In the cold season, a heating facility for adjusting the temperature at the start of fermentation is required, which requires a high facility and energy cost for the treatment, which is difficult to meet the profitable base.

[0007]

[Means for Solving the Problems] Porous solid organic matter, such as wood chips and bark wood, which have been fermented once and used as a water conditioner for fermentation, are sieved immediately after fermentation and re-selected. By mixing and circulating it in new waste as a moisture control auxiliary material and as a heating material for transporting heat, it can be used for energy saving, low cost and efficient fermentation, and high effective fertilizer components It became possible to obtain compost.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described based on embodiments with reference to the drawings. In the examples, the fermentation treatment was divided into primary fermentation and secondary fermentation for composting. FIG.
A primary fermenter 1 contains a culture medium 2 in which crushed fermentable organic matter, which is crushed agricultural and livestock waste, livestock dung and wood chips are mixed.

The water content of the culture medium 2 in the primary fermenter 1 is 50 to
Adjusting to 60% can increase the efficiency. The temperature of the culture medium 2 is adjusted to at least 15 degrees Celsius.

[0010] Porous solid organic substances such as wood chips are added for the purpose of uniformly supplying air in the culture medium 2, adjusting the water content, adjusting the temperature, and concentrating the fertilizing components for the propagation of the inoculum. In the present invention, since it is repeatedly selected and used for the primary fermentation, the solid volume is suitably about 2.0 to 3.0 cubic centimeters.

[0011] Fresh air having a low humidity is blown from the outside air by a blower 4 to the air blow-out pipe 3 so as to uniformly spread over the entire culture medium 2.

When air is supplied and switched (mixed) into the medium 2 for 5 to 7 days, the microorganisms undergo aerobic high-temperature fermentation (primary fermentation).
I do. The fermentation temperature at this time is about 65 to 70 degrees Celsius.

Next, the primary fermentation medium 2 from the primary fermentation tank 1 is passed through a sorting and sieving apparatus 5. The fermented body that has passed through the sieve and has sufficiently absorbed air is stored in the secondary fermenter 9.

[0014] Fresh air having a low humidity is sent from the outside air to the air blow-off pipe 11 by the blower 10 so as to uniformly spread the whole medium 8.

When air supply and switching (mixing) are continued in the medium 8 in the secondary fermentation tank 9, compost maturation fermentation (secondary fermentation) starts at about 45 to 55 degrees Celsius and continues for 30 to 90 days. The fermentation fever of the microorganism subsides. At this point, composting is complete and soil can be reduced.

On the other hand, after the completion of the primary fermentation, the screening device 5
Porous solid organic matter such as wood chips that have not passed through the sieve are separated and stored in an insulated adjusting material tank 6.

The conditioning material 7 is 50 degrees Celsius immediately after fermentation.
It has a high temperature of ６０60 degrees and retains high thermal energy, and the primary fermentation has reduced the water content to about 40-50%. Therefore, in addition to the function as a seed fungus necessary for primary fermentation, it has a function as a heating and moisture adjusting material by transporting a sufficient amount of heat.

The conditioning material 7 is repeatedly circulated and used as a fresh fermentation treatment conditioning material for agricultural, aquatic and livestock waste.
When the adjusting material 7 is an organic substance, it is decomposed by fermentation microorganisms, so that the old material is composted after concentrating fertilizing components. The shortage is to constantly replenish and mix new wood chips into the medium 2. In the case of a solid organic matter substitute, the concentrated fertilizer is extracted again with water or the like, and then used again.

[0019]

As described above, since a large amount of waste from a fishery processing plant or the like is introduced during the winter, the temperature of the whole culture medium 2 is lowered and primary fermentation becomes difficult. Here the adjusting material 7
Is added and mixed, the temperature of the entire culture medium 2 is raised to 15 degrees Celsius or more by the amount of heat of the adjusting material itself. Therefore, the necessity of heating by a large amount of energy such as an oil boiler is eliminated.

The water content of agricultural, livestock, and livestock wastes is extremely high at 80 to 100%, and its separation is extremely difficult. By adding and blending the adjusting material 7 having a low moisture content, the moisture content can be reduced to a uniform and moderate moisture value. In addition, in this moisture adjustment, wood chips and the like newly replenished are mixed if necessary.

At the same time as these functions and functions, the solid organic matter and the like also play a role of uniform blending of the inoculum and uniform supply of air supply by granulation, and can promote highly efficient fermentation.

[Brief description of the drawings]

FIG. 1 is an explanatory sectional view of a primary fermenter.

FIG. 2 is an explanatory sectional view of a sorting and sieving apparatus and a secondary fermenter.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Primary fermentation tank 2, 8 Culture medium 3, 11 Air blow-off pipe 4, 10 Blower 5 Sorting and sieving apparatus 6 Adjustment material tank 7 Adjustment material 9 Secondary fermentation tank

Claims (1)

[Claims] 1. Fermentable organic substances such as agricultural and livestock wastes and livestock manure and porous solid organic substances such as wood chips and bark or artificial substitutes thereof (hereinafter referred to as solid organic substances).
A method of composting, characterized in that fermentation is carried out while concentrating fertilizer by controlling the supply of seed bacteria, adjusting the water content and adjusting the temperature by mixing and recirculating the mixture.